EP0494466B1 - Angetriebenes Bürstengerät für das Säubern von Dächern - Google Patents

Angetriebenes Bürstengerät für das Säubern von Dächern Download PDF

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Publication number
EP0494466B1
EP0494466B1 EP91203101A EP91203101A EP0494466B1 EP 0494466 B1 EP0494466 B1 EP 0494466B1 EP 91203101 A EP91203101 A EP 91203101A EP 91203101 A EP91203101 A EP 91203101A EP 0494466 B1 EP0494466 B1 EP 0494466B1
Authority
EP
European Patent Office
Prior art keywords
wheel
brush means
brush
drive mechanism
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91203101A
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English (en)
French (fr)
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EP0494466A1 (de
Inventor
Pieter Jan Hendrik Hoeymakers
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Individual
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Individual
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Filing date
Publication date
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Publication of EP0494466A1 publication Critical patent/EP0494466A1/de
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Publication of EP0494466B1 publication Critical patent/EP0494466B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
    • A46B13/04—Brushes with driven brush bodies or carriers power-driven carriers with reservoir or other means for supplying substances
    • A46B13/06—Brushes with driven brush bodies or carriers power-driven carriers with reservoir or other means for supplying substances with brush driven by the supplied medium
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G2009/1492—Cleaning apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Definitions

  • the invention relates to a device for cleaning surfaces, said device being provided with a frame supported by ground wheels, which is to be driven by drive means, with brush means supported by said frame, which are to be rotated by drive means, as well as with means for supplying water to said brush means.
  • Such devices which are e.g. used for cleaning the roofs of greenhouses and Dutch-type greenhouses, are e.g. described in DE-B-1,298,355, SU-A-1017220 and in the Dutch journal "Tuinderij", volume 68, No. 21, 13 October 1988, pp. 24 - 25.
  • an electromotor mounted on the frame of the device said electromotor being powered via a cable, which can e.g. be wound on and unwound from a reel mounted on the frame.
  • pipes and the like are provided for the supply of water, which is generally supplied under pressure via a hose connected to a stationary pump.
  • the object of the invention is to overcome the drawbacks of this known device.
  • the device is provided with a drive mechanism to be operated by pressurized water, so as to drive the ground wheels and the brush means, as well as with means for supplying the water used for operating the drive mechanism to said brush means.
  • the water supplied to the device under pressure is utilized for driving the device and the brush means journalled in said device, as well as for cleaning the surfaces, by supplying the water used for said drive to the brush means.
  • the device is supported by ground wheels located near the centre of the device, whilst the brush means are arranged on either side of the ground wheels, this in contrast to the more conventional devices, where the ground wheels supporting the device are arranged near the ends of the frame.
  • Figure 1 is a front elevational view of an embodiment of a device according to the invention.
  • Figure 2 is a plan view of the device shown in Figure 1, wherein certain parts have been left out so as to be able to show parts located thereunder more clearly.
  • Figure 3 is a side elevational view of the device shown in Figures 1 and 2, wherein certain parts have been left out.
  • Figure 4 is a diagrammatic front elevational view of a part of a second embodiment of a device according to the invention.
  • Figure 5 is a diagrammatic plan view of a part of the second embodiment.
  • Figure 6 is a diagrammatic side elevational view of parts of the device according to the second embodiment.
  • Figure 7 is a larger-scale, diagrammatic plan view of the blade wheel of the second embodiment.
  • Figure 8 is a side elevational view of the trough accommodating the blade wheel shown in Figure 7, with pipes, not shown in Figure 7, for the supply of water.
  • the frame of the device comprises two horizontal frame beams 1, which extend parallel to each other in the longitudinal direction of the device. Said frame beams function to support two ground wheels 2 arranged one behind the other, said ground wheels being rotatable about horizontal axes of rotation 3 extending perpendicularly to the longitudinal direction of the device.
  • the ends of the frame beams 1 are interconnected by means of cross beams 4.
  • To said cross beams 4 the lower ends of beams 5 and 6 respectively are attached, said beams 5, 6 extending upwards from the cross beams in question and with their upper ends being attached to a rectangular trough 7, which is open at its upper side.
  • a frame beam 8 which extends parallel to the beams 1, is provided at some distance above the beams 1.
  • Vertically extending screwed spindles 11 are journalled in said frame beams 9 and 10, in such a manner, that said screwed spindles are rotatable about their longitudinal axis, whereby said screwed spindles are not axially movable with respect to the frame beams 9 and 10 in question, however.
  • the screwed spindles 11 are passed through threaded parts of coupling pieces 12, so that said coupling pieces 12 are vertically adjustable by means of the screwed spindles 11.
  • frame beams 14 and 15 are coupled to the coupling pieces 12 by means of horizontal pivot pins 13, which extend in the longitudinal direction of the device.
  • the frame beams 14 and 15 extend outwards from the coupling pieces, whilst a further frame beam 16 is attached to the ends of the frame beams 14 and 15 remote from the coupling pieces 12, said frame beam 16 including an acute angle with the vertical longitudinal centre plane of the device.
  • each frame beam 16 supports three brush means 17, which can be rotated about axes of rotation 18 extending perpendicularly to the longitudinal direction of the frame beam 16.
  • Each brush means 17 is thereby at least substantially built up of a disc 19 extending perpendicularly to the axis of rotation 18, hairs 20 being attached to said brush in such a manner, that said brush hairs form a body having the shape of a truncated cone.
  • Coupling rods 22 are provided between the frame beams 16 and the ends of a frame beam 21 arranged under the trough 7 and extending perpendicularly to the longitudinal direction of the device.
  • the frame beams 16 carrying the brush means 17 can each be adjusted at a desired angle with respect to the horizontal, by rotating said frame beams about the pivot pins 13, and be fixed in their set position by means of the coupling rod 22 in question.
  • a wheel 24 is rotatably disposed by means of an upright shaft 23.
  • Outwardly extending blades 25 are mounted on the outer circumference of the wheel 24.
  • Furthermore regularly spaced spraying nozzles 26 are provided spaced in circumferential direction in the trough 7, said nozzles being connected to a pipe 27.
  • a stub 29, which can be shut off by means of a cock 28, is furhtermore connected to the pipe 27, which stub may be used for connecting a hose (not shown) or the like, for supplying pressurized water from a pump or the like, to the pipe 27.
  • the spray nozzles 26 are arranged in such a manner that water exiting from said spray nozzles under pressure will strike the blades 25, in a direction which is at least substantially tangential with respect to the wheel.
  • the shaft 23 is coupled, by means of a chain transmission 30, to the ingoing shaft 31, extending parallel to the shaft 23, of a right-angled gear transmission accommodated in a gear box 32.
  • the outgoing shaft 33 of said gear transmission extends from either side of the gear box 32.
  • a pulley 34 is mounted on the outgoing shaft 33, which pulley is coupled to a pulley 36 by means of a belt 35, said pulley 36 being mounted on a shaft 37 supported by the front end of the frame beam 8.
  • a sprocket wheel 38 is secured to the shaft 37.
  • a chain 39 is passed over said sprocket wheel 38, said chain furthermore being passed, in the manner illustrated in Figure 3, over three superimposed sprocket wheels 40 - 42, which are supported by a vertically extending carrying means 43 arranged between the two ground wheels 2.
  • the two sprocket wheels 41 and 42 are thereby coupled to friction wheels.
  • the upper end of the carrying means 43 is thereby pivotally coupled to a lever 45 by means of a coupling piece 44, said lever being pivotally coupled to the frame by means of a pivot pin 46′.
  • a double pulley 46 is furthermore coupled to the outgoing shaft 33 of the gear box 32.
  • Said double pulley 46 is coupled to a double pulley 49 by means of two belts 47 and 48, said double pulley 49 being mounted on a shaft 50 located at some distance below the gear box 32 and being supported by the frame.
  • the belt 47 is thereby passed over the two pulleys 46 and 49 in a normal manner, whereas the belt 48 is crossed.
  • a control rod 51 which is journalled in the frame so as to be horizontally movable, is provided with a hand grip 52 at one end and with a roller 53 at its other end.
  • control rod 51 By moving the control rod 51 towards the right, when seen in Figure 3, said roller will engage part of the crossed belt 48 and thus tension said belt, whilst in that situation the belt 47 will be loosely provided around the two pulleys 46 and 49. If on the other hand the control rod 51 is pulled toward the left, when seen in Figure 3, the roller 53 will engage part of the belt 47 and thus tension the belt 47, whilst in that case the belt 48 will be loosely provided on the two pulleys 46 and 49.
  • a sprocket wheel 54 is furthermore provided on the shaft 50, over which a chain 55 is passed, which is also passed over two further sprocket wheels 56 and 57, which are mounted on shafts 58 and 59 respectively, which are journalled in the frame.
  • the shaft 59 is coupled to gear transmissions 61, via which the two outermost brush means 17 secured to the frame beams 16 can be driven.
  • the shaft 58 is coupled, by means of intermediate shafts 63 and gear transmissions 64, to the central one of the brush means 17 secured to the frame beams 16.
  • the brush means 17 located closest together are driven via right-angled gear transmissions 65 connected to the ends of the outgoing shaft 33 of the gear box 32, intermediate shafts 66 and gear boxes 67 connected to the brush means 17 in question.
  • two horizontally extending beams 70 which function as hand grips for controlling the device, are furthermore attached to the frame.
  • the device is e.g. in particular suited for cleaning the sloping roofs, largely comprised of panes, of greenhouses or Dutch-type greenhouses.
  • the two ground wheels 2 of the device are placed in a gutter, which is provided between two roof planes sloping upwards from said gutter in a direction remote from each other.
  • pressurized water is supplied to the pipe 27 by means of a pump or the like, and said pressurized water is forcefully squirted from the spray nozzles 26 against the blades 25 of the wheel 24.
  • said wheel 24 will be rotated in the direction according to the arrow A.
  • the brush means 17 will be rotated via the above-described transmissions.
  • the direction of rotation of the middle brush means and the outer brush means can be reversed by moving the control rod 51.
  • the direction of rotation of the brush means 17 located closest together can be reversed by reversing the transmission mechanisms 65.
  • the water used for driving the wheel 24, and thus the ground wheel 2 in question and the brush means 17, will flow into the pipe 68 via the trough 7 and from said pipe 68, via the pipes 69, towards the brush means, so that this water is also used for cleaning the surfaces to be cleaned.
  • the blade wheel 24 is provided with pairs of blades 71 and 72, the blades 71 and 72 of each pair being arranged back to back in confronting relationship.
  • a first pipe system 73 is disposed in the trough 7, to which pipe system a plurality of spray nozzles 74 are connected, which are directed in such a manner, that when pressurized water is squirted from said spray nozzles against the blades 72, the wheel 24 will rotate in the direction according to the arrow P.
  • a second pipe system 75 is disposed in the trough 7, to which a plurality of spray nozzles 76 are connected.
  • the supply of pressurized water to the pipe system 73 or to the pipe system 75 can be controlled by means of a control valve 77 provided on the outside of the trough 7 ( Figure 8).
  • a connecting piece 78 is attached to the control valve 77, to which a hose or the like (not shown) for supplying pressurized water can be connected.
  • the control valve 77 can be manually controlled by means of a lever 79.
  • control valve 77 Via a first connecting piece 80 the control valve 77 is in communication with the pipe system 73, whilst the control valve 77 is in communication with the pipe system 75 via a connecting piece 81.
  • the shaft 23 of the blade wheel is coupled to an outgoing shaft 83 via a worm gear or gear transmission accommodated in a casing 82, to which shaft a sprocket wheel forming part of a chain transmission 84 is secured.
  • a shaft 85 extending parallel to the shaft 83 and to the axes 3 of the wheels 2 is coupled to the shaft 83 by means of a chain transmission 84.
  • a pulley forming part of a belt transmission 86 is furthermore secured to the shaft 85.
  • Said shaft 85 is coupled, by means of said belt transmission 86, to a shaft 87 journalled in the frame and extending parallel to the shaft 85.
  • the belt of the belt transmission can be tensioned by means of a wheel 88, which is secured to the end of a lever 89 pivotally coupled to the frame.
  • a control rod 90 is coupled to the end of the lever 89 remote from the wheel 88.
  • a wheel 91 is furthermore secured to the shaft 87, said wheel abutting against the outer circumference of at least one wheel 2.
  • the direction in which the wheel 2 is rotated, and also the direction of movement of the device, therefore, is of course dependent on whether the wheel 24 is rotated in the one or in the other direction.
  • the middle brushes 17 are furthermore driven from the shaft 85 by means of intermediate shafts 92, which are provided between the shaft 85 and the gear boxes 64 in question.
  • the gear box 64 furthermore has two outgoing shafts, which are coupled, by means of further intermediate shafts 93 and 94, to the gear boxes 61 and 65, via which the two outer and inner brushes 17 are driven.
  • the brush means 17 are adjustable with respect to the frame beams 16 supporting said brush means, about pivot pins 95 extending at least substantially perpendicularly to the intended direction of movement of the device, when seen in plan view.
  • the housings supporting the shafts of the brushes 17 carried by a beam 16 are coupled, by means of coupling rods 96, to a coupling shaft 97 located above the frame beam 15.
  • Said coupling shaft 97 is rotatable about its longitudinal axis by means of a setting cylinder 98. From the Figures it will be apparent that upon rotation of the shaft 97 about its longitudinal axis the coupling rods 96 will be adjusted in their longitudinal direction, thus causing the brush means to pivot about the pivot pins 95.
  • For operating the setting cylinders 98 use may be made of the pressurized water already being supplied to the device, which water can be supplied to or discharged from the setting cylinders via pipes (not shown) and control means incorporated in said pipe.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Cleaning In General (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Claims (16)

  1. Gerät zum Reinigen von Oberflächen, mit einem Gestell, das durch Laufräder (2) abgestützt ist, die durch einen Antrieb anzutreiben sind, mit Bürsten (17), die durch das Gestell abgestützt und durch einen Antrieb rotierend anzutreiben sind, sowie mit einer Vorrichtung zum Zuführen von Wasser zu den Bürsten,
    dadurch gekennzeichnet, daß das Gerät mit einem durch Wasserdruck zu betätigenden Antriebsmechanismus (24, 25, 26) zum Antrieb der Laufräder (2) und der Bürsten (17) sowie mit einer Vorrichtung zum Zuführen des zum Betätigen des Antriebsmechanismus verwendeten Wassers zu den Bürsten (17) versehen ist.
  2. Gerät nach Anspruch 1,
    dadurch gekennzeichnet, daß das Gerät durch mindestens ein nahe der Mitte des Gerätes angeordnetes Laufrad (2) abgestützt ist, und daß die Bürsten (17) beiderseits des Laufrades (2) angeordnet sind.
  3. Gerät nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, daß die Bürsten (17) in Fahrtrichtung gesehen V-förmig anzuordnen sind.
  4. Gerät nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, daß beiderseits der Längsmittelachse eine Anzahl von Bürsten (17) angeordnet ist, die um Drehachsen drehbar sind, die sich zumindest im wesentlichen senkrecht zu der jeweiligen zu reinigenden Oberfläche erstrecken, wobei die Bürsten (17) in Fahrtrichtung gesehen gestaffelt zueinander derart angeordnet sind, daß sie sich in Fahrtrichtung gesehen gegenseitig überlappen.
  5. Gerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß der Antriebsmechanismus ein drehbar in dem Gestell gelagertes Schaufelrad (24) sowie Sprühdüsen (26) aufweist, mittels derer Wasser unter Druck gegen die Schaufeln (25) des Schaufelrades (24) zu spritzen ist.
  6. Gerät nach Anspruch 5,
    dadurch gekennzeichnet, daß das Schaufelrad (24) derart angeordnet ist, daß es um eine vertikal gerichtete Drehachse drehbar ist.
  7. Gerät nach Anspruch 5 oder 6,
    dadurch gekennzeichnet, daß das Schaufelrad (24) in einem Trog (7) angeordnet ist, an den eine Abflußleitung angeschlossen ist, und daß in Richtung der Bürsten (17) verlaufende Leitungen an die Abflußleitung angeschlossen sind.
  8. Gerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß der Antrieb zwei mit einem Laufrad (2) zusammenwirkende Reibräder aufweist, die in entgegengesetzte Richtung anzutreiben und vertikal derart verstellbar sind, daß nach Belieben das eine oder das andere Reibrad in Kontakt mit dem Laufrad (2) zu bringen ist.
  9. Gerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß der Antrieb einen Reversiermechanismus zum Reversieren der Drehrichtung der Bürsten (17) aufweist.
  10. Gerät nach einem der Ansprüche 1 bis 7,
    dadurch gekennzeichnet, daß der Antriebsmechanismus und die Vorrichtung zum Zuführen von Druckwasser zu dem Antriebsmechanismus derart ausgebildet sind, daß der Antriebsmechanismus durch Ändern der Zuführrichtung des Wassers in zwei entgegengesetzte Richtungen anzutreiben ist.
  11. Gerät nach Anspruch 10,
    dadurch gekennzeichnet, daß der Antriebsmechanismus ein Schaufelrad mit zwei Reihen von Schaufeln (71, 72) aufweist, die relativ zueinander entgegengesetzt ausgerichtet sind, derart, daß das Schaufelrad (24) bei Zuführen von Druckwasser über den einen Satz Sprühdüsen (74) in die eine Richtung und bei Zuführen von Druckwasser über den anderen Satz Sprühdüsen (76) in die entgegengesetzte Richtung gedreht wird.
  12. Gerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß ein Reibrad, das mit einem das Gerät abstützenden Laufrad (2) zusammenwirkt, von einem Antriebsmechanismus angetrieben ist, und daß eine Vorrichtung zum Einstellen der Riemenspannung des Riementriebes (86) vorgesehen ist.
  13. Gerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß die Bürsten (17) um Gelenkstifte (13) verstellbar sind, die sich in Draufsicht zumindest im wesentlichen senkrecht zur Fahrtrichtung des Gerätes erstrecken.
  14. Gerät nach Anspruch 13,
    dadurch gekennzeichnet, daß die Bürsten (17) mittels Verbindungsstangen (22) mit einem Stellzylinder verbunden sind, mittels dessen die Bürsten (17) um die Gelenkstifte (13) zu schwenken sind.
  15. Gerät nach Anspruch 14,
    dadurch gekennzeichnet, daß der Stellzylinder (98) mittels Druckwasser zu betätigen ist.
  16. Gerät nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß die die Bürsten (17) tragenden Gestellteile (16) vertikal verstellbar sind.
EP91203101A 1991-01-11 1991-11-27 Angetriebenes Bürstengerät für das Säubern von Dächern Expired - Lifetime EP0494466B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9100036A NL9100036A (nl) 1991-01-11 1991-01-11 Inrichting voor het reinigen van oppervlakken.
NL9100036 1991-01-11

Publications (2)

Publication Number Publication Date
EP0494466A1 EP0494466A1 (de) 1992-07-15
EP0494466B1 true EP0494466B1 (de) 1994-08-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP91203101A Expired - Lifetime EP0494466B1 (de) 1991-01-11 1991-11-27 Angetriebenes Bürstengerät für das Säubern von Dächern

Country Status (4)

Country Link
EP (1) EP0494466B1 (de)
AT (1) ATE109619T1 (de)
DE (1) DE69103393D1 (de)
NL (1) NL9100036A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
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NL1031283C2 (nl) * 2006-03-03 2007-09-04 Cox Technics Reuver B V Inrichting voor het reinigen van althans een deel van een dak van een warenhuis.

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FR2833149B1 (fr) * 2001-12-12 2004-03-05 Gilles Leclair Appareil de lavage de vitres
US8393791B2 (en) 2009-08-17 2013-03-12 The Boeing Company Bearing side face electrical isolation
NL2010450C2 (nl) * 2013-03-14 2014-09-16 Joost Waay Kasdekreiniger.
CN104759435B (zh) * 2015-04-24 2017-02-01 西南大学 一种玻璃屋顶清洗装置
CN107096742A (zh) * 2017-06-08 2017-08-29 北京市农业机械研究所 一种连栋温室棚面清洗机
CN107439266A (zh) * 2017-06-30 2017-12-08 海南大学 一种自走式温室青苔清除装置
CN108277742B (zh) * 2018-03-08 2024-05-28 湖北三六重工有限公司 大坡度爬坡行走机构
CN109220392B (zh) * 2018-09-25 2022-11-08 湖南朱亭现代农业有限公司 一种农业用具有发电功能的蔬菜种植大棚
CN110847622B (zh) * 2019-11-25 2021-07-20 江西四季景观建设有限公司 一种玻璃智能温室日常管理自动化清洁设备
CN110921783A (zh) * 2019-12-30 2020-03-27 青岛青水津膜高新科技有限公司 一种可在线清洗的mbr膜组件装置
CN112222023B (zh) * 2020-08-12 2022-01-11 江苏大学 一种Venlo型玻璃温室清洗装置
CN112471987B (zh) * 2020-11-26 2021-10-08 电子科技大学成都学院 一种温室清洁机器人

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DE1298355B (de) * 1967-06-23 1969-06-26 Busch Jaeger Duerener Metall Dachwaschwagen fuer Gewaechshaeuser

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Title
GB; AN 87-11441-16 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1031283C2 (nl) * 2006-03-03 2007-09-04 Cox Technics Reuver B V Inrichting voor het reinigen van althans een deel van een dak van een warenhuis.

Also Published As

Publication number Publication date
DE69103393D1 (de) 1994-09-15
EP0494466A1 (de) 1992-07-15
NL9100036A (nl) 1992-08-03
ATE109619T1 (de) 1994-08-15

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